The escalator that leads down into a subway station has a length of 30.0 meters and a speed of 1.8 meters/second. relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11 seconds. Relative to the escalator what speed must the student exceed in order to beat the record?
My question: I don't understand what this question is asking. What does it mean by "running the wrong direction on this escalator"? Any help on what this question is asking, and what I need to find is very appreciated.